Finding the Fourth Proportional to 280,201,542.14, 386,678,877.99 and 156,446,647.58
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Solution
The fourth proportional to 280,201,542.14, 386,678,877.99 and 156,446,647.58 is: 215,896,792.32
Step by Step Solution
- Step 1: Write the proportion equation
280,201,542.14 : 386,678,877.99 = 156,446,647.58 : x - Step 2: Convert to fraction form
280,201,542.14/386,678,877.99 = 156,446,647.58/x - Step 3: Cross multiply
280,201,542.14x = 386,678,877.99 × 156,446,647.58 - Step 4: Simplify right side
280,201,542.14x = 60,494,614,151,531,352 - Step 5: Solve for x
x = 60,494,614,151,531,352/280,201,542.14 - Step 6: Final answer
x = 215,896,792.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.